From: Joel Becker <jlbec@evilplan.org>
To: Andrew Morton <akpm@osdl.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>,
suparna@in.ibm.com, linux-kernel@vger.kernel.org,
linux-aio@kvack.org
Subject: Re: [PATCH][2.6-mm] Readahead issues and AIO read speedup
Date: Thu, 7 Aug 2003 20:36:43 +0100 [thread overview]
Message-ID: <20030807193641.GM3164@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <20030807092800.58335e84.akpm@osdl.org>
On Thu, Aug 07, 2003 at 09:28:00AM -0700, Andrew Morton wrote:
> If the database pagesize is 16k then the application should be submitting
> 16k reads, yes? If so then these should not be creating 4k requests at the
> device layer! So what we need to do is to ensure that at least those 16k
Um, I thought bio enforced single CDB I/O for contiguous chunks
of disk! If it doesn't, 2.6 is just as lame as 2.4.
Joel
--
"Three o'clock is always too late or too early for anything you
want to do."
- Jean-Paul Sartre
http://www.jlbec.org/
jlbec@evilplan.org
next prev parent reply other threads:[~2003-08-07 19:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-07 10:01 Suparna Bhattacharya
2003-08-07 16:01 ` Badari Pulavarty
2003-08-07 16:28 ` Andrew Morton
2003-08-07 17:21 ` Badari Pulavarty
2003-08-07 17:39 ` Andrew Morton
2003-08-07 20:41 ` Badari Pulavarty
2003-08-07 20:58 ` Andrew Morton
2003-08-08 13:56 ` Suparna Bhattacharya
2003-08-13 21:06 ` Ram Pai
2003-09-23 0:41 ` Ram Pai
2003-08-07 19:36 ` Joel Becker [this message]
2003-08-08 5:42 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030807193641.GM3164@parcelfarce.linux.theplanet.co.uk \
--to=jlbec@evilplan.org \
--cc=akpm@osdl.org \
--cc=linux-aio@kvack.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pbadari@us.ibm.com \
--cc=suparna@in.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®